Important Formulas for CAT 2020 Preparation - CAT Exam Revision Tips
Important Formulas for CAT Preparation - Proceeding further towards CAT important formulas, lets get familiar with the “Importance of CAT Formulas”. When it comes to CAT preparation basically for the Quantitative Aptitude section, the most important aspect is remembering the formulas and theorems and by knowing such key formulas one will get to know when and how to apply them. Thus, it becomes more important that a candidate will have to be well versed with the basic formulas as it is required to solve the questions with good speed and accuracy rate. The questions in the QA section are from various topics such as Profit, Loss and Discount, Number System, Time and Work, LCM and HCF, Logarithm, Averages, Set theory & Function, Probability, Permutation & Combination, Trigonometry, Mensuration, Coordinate Geometry, etc. Formulae are the basic and indispensable part to ace the quantitative section in the CAT. They may be proved to be an elixir to the section, if one does their preparation in an appropriate manner. So as one starts their CAT 2020 preparation, here is the list of important formulae that one needs to master to crack the Common Admission Test successfully.
Latest CAT Updates: CAT 2020 Answer Key to be available by December 5. Know all about CAT 2020 result here.
CAT 2020 Basic Mathematical Formulas
(a + b)² = (a² + b² + 2ab)
(a – b)² = (a² + b² – 2ab)
(a + b)(a – b) = (a² – b²)
(a + b)² = (a² + b² + 2ab)
(a³ – b³) = (a – b)(a² + ab + b²)
(a + b + c)² = a² + b² + c² + 2(ab + bc + ca)
(a³ + b³) = (a + b)(a² – ab + b²)
When a + b + c = 0, then a³ + b³ + c³ = 3abc
(a³ + b³ + c³ – 3abc) = (a + b + c)(a² + b² + c² – ab – bc – ac)
(a + b)n = an + (nC1)an-1b + (nC2)an-2b² + … + (nCn-1)abn-1 + bn
CAT Important Formulas for Number System
(1² + 2² + 3² + ….. + n²) = n ( n + 1 ) (2n + 1) / 6
1 + 2 + 3 + 4 + 5 + … + n = n(n + 1)/2
(1³ + 2³ + 3³ + ….. + n³) = (n(n + 1)/ 2)²
Sum of first n odd numbers = n²
Sum of first n even numbers = n (n + 1)
Formulas for LCM and HCF
LCM × HCF = Product of the Numbers
LCM of Co-prime Numbers = Product Of The Numbers
Mathematical Formulas for Profit, Loss and Discount
Profit % = Profit/(C P)×100
Profit/Gain = (S.P.) – (C.P.)
C P = 100/(100+gain %)×S P
S P = (100+gain % )/100 ×C P
Loss % = Loss/(C.P.)×100
Loss = (C.P.) – (S.P.)
C P = 100/(100-loss %)×S P
S P = (100-loss %)/100×C P
Formulae for Percentages
Find what percentage of X is Y: Y/X x 100
Increase N by S% = N(1+S/100)
Decrease N by S% = N(1 - S/100)
Important Formulas for Speed, Time and Distance
Speed= Distance/ Time
Distance= Speed x Time
Time= Distance/ Time
Time and Work Formulas (Basic Formulas)
If X can do a piece of work in ‘n’ days, then X’s 1 day’s work= 1/n
If X’s 1 day’s work= 1/n, then X can finish the work in n days.
Average= Sum of observations/ Number of observations
Simple and Compound Interest Formula
Simple Interest: P x i x n (P= Principle, i= interest rate and n= term of the loan)
Compound Interest = [P(1+i)n] - P
Compound Interest = P[(1+i)n-1]
Mathematical Logarithm Formulas
If n and a are positive real numbers, and a is not equal to 1, then If ax = n, then log a n = x
log of 1 to any base is 0 (log b 1 = 0)
log of any number to base as itself is 1, log a a = 1
Logarithm of a Product (log a pq = log a p + loga q)
Logarithm of a Fraction (log a (p/q) = log a p – log a q)
log a pn = n log a p
a(log a p) = p
Base Change Rule of Logarithms: (log a n = log b n × log a b)
CAT 2020Trigonometry Formulas
The reciprocal identities are given as
Mathematical Mensuration Formulas
Area = lb
Perimeter = 2(l+b)
Perimeter = 4a
Area = a×a
Area =b×h/2 or √s(s-a)(s-b)(s-c)…………….where s=a+b+c/2
Volume: V = l3
Surface Area: S = 6s2
Diagonal (d) = √3l
Lateral surface area = 4a2
Circumference = 2πr or πd
Area = πr² or πd²/4
Area of sector of a circle = (θπr² )/360
Total surface area = 2 (lb + bh + hl) or 6l2
Volume of cuboid: lbh
Length of diagonal =√(l²+b²+h²)
Formulas for Coordinate Geometry
AB² = (Bx – Ax)² + (By – Ay)²
Midpoint of the line joining the points (x1, y1) and (x2, y2) is:
[½(x1 + x2), ½(y1 + y2)]
CAT 2020 Formulas for Surds and Indices
Mixtures and Allegation Formula
If 2 ingredients are mixed, then
(Quantity of cheaper/ Quantity of dearer) = (C.P of dearer - Mean price/ Mean price - C.P of cheaper)
Permutation and Combination Formula for CAT 2020
Formulas for Set Theory and Function
(A ∩ B) ‘ = A’ U B’ and (A U B)’ = A’ ∩ B’
IIM Fees for MBA and Seats - Know the IIM MBA fee structure an...
IIM Udaipur Admission Criteria 2021-23: Know all about the adm...
IIM Admission Criteria 2021-2023: Check the admission criteria...
CAT Login 2021- To appear for the CAT exam, all must register ...
Questions related to CAT
my sister have completed 10th gradeand she want to persuer MBA through CAT and unfortunately she dont like chemistry , what courses does she need to take now to become MBA?
First tell you sister to pursue an Undergraduate Degree after 12th be it B.Sc./BBA/B.Tech/BCA/MBBS/B.Com/BMS/BA or whatever she's interested in. Preferably an Engineering, Mathematics, Statistics or Commerce degree will help her, since shell ultimately pursue MBA.
In the Final Year of her graduation ask her to appear for CAT followed by MBA, or she may have a short 1-2 year Work Experience followed by MBA in some of Best Management Institutions in India.
For more information about CAT do follow the link below
My 10th number was 46%, 12th with 48%, graduaction with 55% marks. My mediam was not english, i am preparing best for cat and hope to get respectable score. Please suggest me some MBA collages that i can get into bacause most of good b-schools rejects studests based 12th & 10th score? Please help!
Basically 1 Indian Institute of Management each year conduct common admission test or CAT examination to provide admission in in IIMs and top business schools.the basic eligibility criteria for this examination is that you should have minimum 50% marks for general category in your graduation level. There are also some other Eligibility criteria s .
however they initially you are completely eligible for this examination.
You have to secure a good percentile in CAT examination . Top b schools invites candidates with their Percentiles. Then in a group discussion part and personal interview part held for final admission.
(Click on the link below to know more about CAT examination eligibility and total thing
As as your 10th and 12th marks are below 60% which can affect in interviews. However if you somehow managed to to get admission in those colleges, you might have a problem in placement time.
But but don't worry if you think that you can do you better in your life and believe that past is past don't do that again.
Here here is the list of some colleges as you preferred
- KJ Somaiya
- IIm Patna
- Goa Institute of Management
- IIM Lucknow
- XLRI (they might ask for some work experience)
Don't worry .
Try your best. Read that article that can give you some positivity
hello i have completed 12th as well as diploma and i have got admission in my ug on the basis of diploma marks and they are good as compare to my 12th marks so which marks should i feel for cat examination
See if you have good performance in Diploma which is considered as equivalent to 12th than you should go with diploma details while filling your CAT application form. The reason being is, in CAT application you have option to fill either class 12th details or diploma details so if you have completed diploma then you can opt for diploma in the CAT application form.
Also note that to apply for CAT 2021 you should either be in final year of your graduation or should have completed your graduation with 50% minimum marks . For complete details about application form of CAT 2021 kindly check out the link given below :-
Common Admission Test, in short CAT is conducted by any of the IIM in rotation every year , it is a computer-based entrance exam conducted for MBA/PGDM admissions at 20 IIMs and 1000+ B-Schools in India.
As per the new paper pattern the paper is of total 228 marks and it will consists of 76 total number of questions divided in three sections namely VARC, DILR and QA. Out of these 76 questions, 54 question will be of MCQ type and other 22 will be Non-MCQ. For every correct answer 3 marks will be awarded and on incorrect answer -1 will be deducted only from MCQs not from Non-MCQs. For complete exam pattern(latest) of CAT kindly check out the link given below :-
For CAT 2021 no exact dates are out yet but it is expected that the application process for it will start in the month of August '21 and the tentative exam date is November 28th 2021.
You can get complete information about CAT 2021 from the link given below :-
I hope this information helps you.
when CAT form will be fill????
It's expected that by the first week of August IIM Ahmedabad will tentatively commence online registration for CAT at https://iimcat.ac.in/
the exam is expected to be conducted on 28th November, and the eligibility criteria to appear for the same is passed graduation in any discipline from a recognized University with 50% aggregate, there is relaxation of 5% for reserved categories, those in the final years too are eligible to apply, to know more details regarding this, visit our page at https://bschool.careers360.com/articles/cat-registration/amp
I got 87 % in Tenth ; 63% in XII ; 58% in BA (Arts) and 12 years work experience in defence. How much should I score in CAT to get call from IIMs.
Hello Rahul Kumar singh
I hope you are doing good .
I would like to tell you that your academic profile is good as you have 12 years of work experience but age criteria is also important factor and type of work you did. Your marks in 12th and graudation are not very good so you need to get atleast above 95percentile to get a call from baby IIMs like iim ranchi and shillong
Hope you found this answer helpful. Good luck for your future